Improvement in post-hole augees



ALLEN BURTON', OF CHICAGO, ILLINOIS.

Letters Patent No. 76,598, dated Api-Z 14, 1868.

IMPROVEMENT POST-HOLE AUGBRS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, ALLEN BU1tTON,of Chicago, iu the county of Cook, and State of Illinoisahave invented a new and useful Improvement in Post-Augcrs; and I do hereby declare and make known that the following-is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and the" letters and figures marked thereon, which form part of this specification.

My invention relates to anovel mode ot' constructing auger-s for '-boringinthe ground to form holes for fence-posts or other purposes; and it consists in -admitting the air into tho'cav'ity'below the auger, whenin use, to facilitate the withdrawal of the auger and thea'rth'uponfitffrom the hole. l

v To enable .those skilled in the art to understand how to construct and use my said invention, I will proceed to describe the same with particularity, makingreierenee in soidoi'ng to the aforesaid drawings, in which Figure 1 represents a side elevation of my invention, and

Figure 2 is a. centralvertic'al section thereof. I

Similar letters of reference in the diierent figures denote the same parts off-my said invention.

-A represents the rod upon which the auger-B is arranged,rbylbeing turned or screwed thereupon, as indicated in fig. 2. This rod is constructed hollow-to apoint'- below tbe'au'ger B, and is there provided with openings, a a, throug h which theair entering the top or other part of said tube'A may escupe. Thel auger is inserted or bored into the earth by turning the handles In'the tube A is' arranged arod, C, extending down to -a short tube, D, to which it is attached, said tube Dbeing provided'with lugs I1 b, which project through the aforesaid openings a a in the tube A," so that the 'air entering the tube A, atany point above the auger'B, may pass down through said tube D into the cavity below, und when the'tubeD is thrust down, it closes theopenings a a, which is the position when the auger is' being bored into the ground, but when the rod C is raised up, the apertures a a are opened, and the air escpes into the hole below the auger B. I

Instead of the tube DLupon-the end of the rod C, any suitable valve may be used, and, if desired, the rod Y C may be made hollow to the top, or the air may be admitted into theitube atany point above the auger B, and in any convenient manner.

By admitting the air into-the post`-hole belpw the leaves of the auger, after the same has -been turn-ed into the ground a suitable distance, and when it is desired to draw out the auger, and so remove the loosened-earth, the air below, counterbalances the vertical atmosphericpr'essure, and thusthe 'only obstacles the operator has' to overcome are the weight of the superincumbent earth, and friction, rendering the operation ot boring the holes much easier and more rapidly accomplished. i

Having described the construction and operation of my invention, I will now specify what I claim, and desire to secure by Letters Patent.

I claim, in combination with the hollow handle A, the rod C, arranged within said handle, and operating in the manner and for the purposes set forth.

ALLEN BURTON.

v Witnesses:

L.. L. CoBURN, E. Manns. 

